As you have been pointing out above, pixel counting is not the whole story. Leaving aside that I have never heard of a molecular enlarger, and measurements made comparing chemical and digital (e.g., http://www.luminous-landscape.com/tutorials/dq.shtml), why do you think there will be no improvements to current digital?

i was trying to say that with film the image data is captured with particles the size of molecules - but one can no longer get decent prints because they are made (on the consumer level) with (fuji) digital equipment after being scanned in from the negative

when they can pack 45 meg onto a 24x36mm sensor with +/- 3 stops of lattitude THEN digital will be film's equal for large prints